Battery module – FRONIUS – Reserva – 3.15 kWh – HV

Fronius Reserva battery module 3.15 kWh

Fronius Reserva is a high-voltage, DC‑coupled battery designed for storing solar energy with minimal losses. The system can be flexibly expanded from two to five modules, and is perfectly matched to Fronius hybrid inverters to ensure maximum performance. The product offers European data security and fast service for the highest level of reliability.

Key features of the Fronius Reserva:

• Usable capacity from 6.31 kWh to 15.79 kWh in a single tower (configurations from 2 to 5 modules).
• Parallel connection of up to four towers, allowing up to about 63 kWh of capacity.
• Guaranteed to retain at least 80% of battery capacity for 10 years.
• Stackable modular design simplifies installation and expansion.
• Battery status display lets you quickly check key device information.
• Emergency power and black start capability — operates even during power outages.

Who is this a good choice for?

Fronius Reserva is an ideal solution for homeowners and businesses who want to make the most of solar energy, increase energy independence, and benefit from variable electricity tariffs. With emergency power capability, it ensures continuity of electricity supply even in crisis situations. Its space‑saving design makes it suitable for installation in various locations, even where space is limited.